Home / 2,629.21-3,942.70-1,442.95

Finding the Fourth Proportional to 2,629.21, 3,942.70 and 1,442.95

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Solution

The fourth proportional to 2,629.21, 3,942.70 and 1,442.95 is: 2,163.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.21 : 3,942.70 = 1,442.95 : x
  2. Step 2: Convert to fraction form
    2,629.21/3,942.70 = 1,442.95/x
  3. Step 3: Cross multiply
    2,629.21x = 3,942.70 × 1,442.95
  4. Step 4: Simplify right side
    2,629.21x = 5,689,118.97
  5. Step 5: Solve for x
    x = 5,689,118.97/2,629.21
  6. Step 6: Final answer
    x = 2,163.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.